Nonstop flight route between Denis Island, Seychelles and Ulan Bator, Mongolia:

About this route:

A direct, nonstop flight between Denis Island Airport (DEI), Denis Island, Seychelles and Chinggis Khaan International Airport (ULN), Ulan Bator, Mongolia would travel a Great Circle distance of 4,712 miles (or 7,583 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Denis Island Airport and Chinggis Khaan International Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Denis Island Airport and Chinggis Khaan International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Denis Island Airport (DEI):

• The furthest airport from Denis Island Airport (DEI) is Atuona Airport (AUQ), which is located 11,058 miles (17,797 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
• The closest airport to Denis Island Airport (DEI) is Bird Island Airport (BDI), which is located 32 miles (51 kilometers) W of DEI.
• Because of Denis Island Airport's relatively low elevation of 10 feet, planes can take off or land at Denis Island Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Denis Island Airport (DEI) currently has only 1 runway.

Facts about Chinggis Khaan International Airport (ULN):

• The closest airport to Chinggis Khaan International Airport (ULN) is Mandalgovi Airport (MXW), which is located 145 miles (234 kilometers) S of ULN.
• The furthest airport from Chinggis Khaan International Airport (ULN) is Cochrane Airfield (LGR), which is nearly antipodal to Chinggis Khaan International Airport (meaning Chinggis Khaan International Airport is almost on the exact opposite side of the Earth from Cochrane Airfield), and is located 12,386 miles (19,933 kilometers) away in Cochrane, Chile.
• The airport is due for replacement in 2017 by the new Khöshigt Valley Airport due to be constructed at the Khoshigt Valley 52 kilometres from Ulaanbaatar city centre.
• In addition to being known as "Chinggis Khaan International Airport", another name for ULN is "Чингис хаан олон улсын нисэх буудалᠴᠢᠩᠭᠢᠰ ᠬᠠᠭᠠᠨ ᠣᠯᠠᠨ ᠤᠯᠤᠰ  ᠦᠨ ᠨᠢᠰᠬᠦ ᠪᠠᠭᠤᠳᠠᠯ".
• The airline Aero Mongolia has its head office on the third floor of the main airport building.
• Chinggis Khaan International Airport (ULN) has 2 runways.
• Because of Chinggis Khaan International Airport's high elevation of 4,364 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ULN. Combined with a high temperature, this could make ULN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The airport was first established as Buyant-Ukhaa airport on 19 February 1957.
• Chinggis Khaan International Airport handled 1,098,865 passengers last year.